Focus groups theory and practice
| Egile nagusia: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
Newbury Park, Calif.
Sage Publications
c1990.
|
| Saila: | Applied social research methods series
v. 20 |
| Gaiak: |